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Volume 1 Issue 4
Dec.  2010
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Article Navigation >  Journal of Tropical Biology  > 2010  >  1(4): 362-366

FENG Bo, HOU Gang, WANG Xue-feng. Research on Length-based Yield Per Recruit and Spawning-biomass Per Rrecruit of Trichiurus lepturus in Beibu Gulf[J]. Journal of Tropical Biology, 2010, 1(4): 362-366. doi: 10.15886/j.cnki.rdswxb.2010.04.018
Citation: FENG Bo, HOU Gang, WANG Xue-feng. Research on Length-based Yield Per Recruit and Spawning-biomass Per Rrecruit of Trichiurus lepturus in Beibu Gulf[J]. Journal of Tropical Biology, 2010, 1(4): 362-366. doi: 10.15886/j.cnki.rdswxb.2010.04.018
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Research on Length-based Yield Per Recruit and Spawning-biomass Per Rrecruit of Trichiurus lepturus in Beibu Gulf

doi: 10.15886/j.cnki.rdswxb.2010.04.018

  • 1. Fisheries college, Guangdong Ocean University, Zhanjiang 524025, China;

  • 2. Fisheries resource monitoring and assessment center for South China Sea, Zhanjiang 524025, China

  • Received Date: 2010-09-13
  • Two kinds of length based Beverton and Holt spawning biomass per recruit（SBR） models were used to evaluate the Trichiurus lepturus stock in Beibu Gulf according to current fishing mortality. The data indicated that the absolute value of SBR was 42.07 g,which was about 4.82% of that of the initial stock under the equilibrium condition,and this level suggested that it was recruitment overfishing and the majority of catch was young fish. Enlarging length at first capture and decreasing fishing mortality were effective means to rebuild the spawner biomass.
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Research on Length-based Yield Per Recruit and Spawning-biomass Per Rrecruit of Trichiurus lepturus in Beibu Gulf

doi: 10.15886/j.cnki.rdswxb.2010.04.018
  • 1. Fisheries college, Guangdong Ocean University, Zhanjiang 524025, China;
  • 2. Fisheries resource monitoring and assessment center for South China Sea, Zhanjiang 524025, China
  • Received Date: 2010-09-13

Abstract: Two kinds of length based Beverton and Holt spawning biomass per recruit（SBR） models were used to evaluate the Trichiurus lepturus stock in Beibu Gulf according to current fishing mortality. The data indicated that the absolute value of SBR was 42.07 g,which was about 4.82% of that of the initial stock under the equilibrium condition,and this level suggested that it was recruitment overfishing and the majority of catch was young fish. Enlarging length at first capture and decreasing fishing mortality were effective means to rebuild the spawner biomass.

FENG Bo, HOU Gang, WANG Xue-feng. Research on Length-based Yield Per Recruit and Spawning-biomass Per Rrecruit of Trichiurus lepturus in Beibu Gulf[J]. Journal of Tropical Biology, 2010, 1(4): 362-366. doi: 10.15886/j.cnki.rdswxb.2010.04.018
Citation: FENG Bo, HOU Gang, WANG Xue-feng. Research on Length-based Yield Per Recruit and Spawning-biomass Per Rrecruit of Trichiurus lepturus in Beibu Gulf[J]. Journal of Tropical Biology, 2010, 1(4): 362-366. doi: 10.15886/j.cnki.rdswxb.2010.04.018
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